MERCEDES 725-270-94-10-87 Transmission Benz

( Model: SLC300 C300 E300 GLC300 ), ( Part Type: Transmission ), ( Genuine Oem: Yes ), ( Oem Part Number: 725-270-94-10-87 ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Make: Mercedes-benz ), ( Year: 2017 2018 2019 2020 ), ( Parts Included: Only Part Reference 0 On The Diagram Is Included ), ( Replaces Part Number: 725270061180, 725270941080 ), ( UPC: 725270941087 )

Review MERCEDES benz Genuine Transmission fits SLC300 2017–2020

The **Mercedes-Benz 725.270.94.10.87 transmission** is a meticulously engineered, high-performance automatic transmission designed for the most demanding applications in luxury and high-end automotive engineering. This unit belongs to the legendary **725 series**, a robust and reliable transmission system originally developed for Mercedes-Benz s iconic **500 SEL (W116) and later adapted for use in commercial and industrial vehicles**, including heavy-duty trucks, buses, and specialized off-road applications. Built to withstand extreme torque loads and prolonged heavy-duty operation, this transmission features a **four-speed automatic design** with a **torque converter** that ensures smooth power delivery while maintaining exceptional durability.

The **725.270.94.10.87** is characterized by its **precision-crafted gear sets**, forged from high-grade alloy steel and heat-treated to achieve optimal strength and wear resistance. The **planetary gear arrangement** provides a compact yet powerful structure, allowing for efficient power transmission even under the most arduous conditions. This transmission is equipped with a **hydraulic valve body** that regulates shifting logic, ensuring seamless gear transitions while adapting to varying load demands. The **overdrive function** in the fourth gear enhances fuel efficiency and reduces engine strain during cruising speeds, making it ideal for both long-haul and urban applications.

One of the standout features of this transmission is its **robust clutch and band system**, which includes **multi-plate wet clutches** and **diaphragm springs** that provide consistent engagement and smooth deceleration. The **torque converter** is designed with a **pump-turbine-stator assembly**, allowing for efficient torque multiplication and improved starting performance, particularly in high-torque applications. Additionally, the transmission incorporates a **cooling system** with an integrated oil cooler to prevent overheating, extending the lifespan of internal components and ensuring long-term reliability.

Built to Mercedes-Benz s exacting standards, the **725.270.94.10.87** is often found in **military vehicles, armored personnel carriers, and heavy-duty commercial rigs**, where reliability and durability are non-negotiable. Its **modular design** allows for easy servicing and component replacement, making maintenance more accessible without compromising performance. Whether integrated into a **Mercedes-Benz Unimog, a specialized military transport, or a high-performance luxury vehicle**, this transmission delivers unmatched torque capacity, smooth operation, and enduring performance making it a cornerstone of Mercedes-Benz s legacy in automotive engineering.

### Pros and Cons of Buying a Mercedes-Benz 725 (W126) with a 94-10-87 Transmission

#### **Overview**

The Mercedes-Benz 725 (W126) is a luxury sedan produced from 1985 to 1991, known for its refined engineering, powerful V8 engine, and classic German craftsmanship. The **94-10-87 transmission** (a variant of the 722.6 automatic) was commonly paired with the 7.3L V8 in the 725i and 728i models. This transmission is a robust, hydraulic, three-speed automatic with a torque converter, designed for high-performance applications.

---

### **Pros**

1. **Power and Performance**

- The 7.3L M117 V8 produces **250 280 hp** (depending on model year and tuning), delivering strong acceleration and towing capability. This makes it well-suited for highway driving and long-distance travel.

- The transmission is built to handle the torque of the V8, providing smooth power delivery when properly maintained.

2. **Luxury and Comfort**

- The W126 chassis is renowned for its **quiet cabin, smooth ride, and high-quality materials**, making it a comfortable choice for daily driving or extended trips.

- Features like power windows, seats, and climate control add to the premium experience.

3. **Reliability (with Proper Care)**

- The **722.6 transmission** is a robust unit when maintained correctly. Many examples last well over 200,000 miles with regular fluid changes and attention to wear.

- The torque converter and planetary gears are durable, though they require proper lubrication to avoid premature failure.

4. **Classic Mercedes-Benz Prestige**

- Owning a W126 725i/728i carries prestige, especially in classic car circles. The model is highly sought after for its blend of power and elegance.

- Restored examples can appreciate significantly in value, making it a potential investment for enthusiasts.

5. **Modification Potential**

- The V8 is a favorite among tuners, with aftermarket support for **forged internals, turbocharging, and fuel system upgrades**. A well-modified 725 can rival modern muscle cars in performance.

- The transmission can handle **forced induction** with proper reinforcement, though it may require a stronger converter or modified linkages.

6. **Availability of Parts**

- As a classic Mercedes, parts are widely available, though some may require sourcing from specialty suppliers. The transmission itself is not exceedingly rare, though high-mileage examples may need rebuilds.

7. **Driving Dynamics**

- The W126 handles well for its size, with a balanced suspension setup that offers a mix of comfort and engagement. The manual shift (if equipped) provides a satisfying driving experience.

---

### **Cons**

1. **High Maintenance Costs**

- **Engine:** The 7.3L V8 is a thirsty, high-compression engine that requires **high-quality fuel, regular valve adjustments (every 30,000 50,000 miles), and potential head gasket or camshaft issues** as it ages.

- **Transmission:** While durable, the **722.6 automatic is prone to fluid leaks, solenoid failures, and internal wear** if fluid isn t changed every **30,000 50,000 miles**. A rebuild can cost **$2,000 $4,000** if major components fail.

- **Suspension and Steering:** Bushings, ball joints, and control arms wear out over time, requiring frequent replacements.

2. **Fuel Economy**

- The V8 guzzles fuel, averaging **12 15 MPG highway** and **9 12 MPG city**. This makes it expensive to operate, especially with rising gas prices.

3. **Complexity and Expertise Required**

- The W126 is a **high-maintenance luxury car** that demands mechanical knowledge. Issues like **vacuum leaks, electrical gremlins, and cooling system failures** are common and require patience to diagnose.

- Finding a qualified Mercedes specialist can be difficult outside major cities.

4. **Transmission Limitations**

- The **94-10-87 transmission is not a "modern" automatic**. It lacks features like **adaptive shift programming, torque converter clutch (TCC), or electronic controls**, which can lead to **jerky shifts or poor fuel economy** compared to contemporary automatics.

- **No reverse neutral safety (NRS)**: Some versions lack a neutral safety switch, which can be a safety concern if the transmission slips into gear accidentally.

- **Limited overdrive gear**: The 722.6 has only three forward gears, which can feel slow at highway speeds compared to modern 4-speed or 5-speed automatics.

5. **Rust and Structural Issues**

- Many W126s suffer from **floor pan rust**, especially in snowy or coastal climates. A thorough inspection of the **subframe, rear quarter panels, and wheel wells** is essential.

- **Frame rust** can weaken the structural integrity, leading to handling issues or safety concerns.

6. **Depreciation and Insurance Costs**

- While classic Mercedes appreciate over time, **daily-driven examples depreciate quickly**. Insurance for a high-value classic can be expensive, especially if the car is used regularly.

- Theft is a risk; the W126 is a target for parts thieves due to its value.

7. **Modern Comfort and Safety Shortcomings**

- **No ABS, airbags, or modern safety features**: Early W126s lack electronic stability control, traction control, and advanced airbag systems.

- **Poor visibility**: The large body and high roofline can make parking and maneuvering difficult.

- **Climate control inefficiency**: Older HVAC systems may struggle with extreme temperatures, and the car can feel stuffy in hot climates.

8. **Environmental and Practicality Concerns**

- The V8 is **not fuel-efficient or eco-friendly** by modern standards, which may be a drawback for environmentally conscious buyers.

- **Narrow rear seats**: While comfortable for adults, the rear seating is tight for three passengers, and the trunk is smaller than modern luxury sedans.

---

### **Ending Conclusion**

The **Mercedes-Benz W126 725i/728i with a 94-10-87 transmission** is a **powerful, luxurious, and iconic** vehicle that offers a **unique driving experience** and strong resale potential for enthusiasts. However, it is **not a practical or low-maintenance choice** for the average driver. The **transmission, engine, and overall complexity** demand **regular attention, mechanical skill, and a willingness to invest in upkeep**.

- **Enthusiasts who appreciate classic luxury and performance** and are prepared for the challenges of ownership.

- **Owners who prioritize driving enjoyment over convenience**, such as those who enjoy **manual shifting, strong acceleration, and a refined ride**.

- **Investors who plan to restore and preserve the vehicle** rather than use it daily.

For those seeking **modern comfort, fuel efficiency, or low maintenance**, the W126 is **not the best choice**. However, for the right buyer someone who values **heritage, power, and the art of classic car ownership** it remains a **fantastic and rewarding** purchase.

---

### **Recommendation**

You have **mechanical experience** or access to a **trusted Mercedes specialist**.

You are **prepared for high maintenance costs**, including **transmission fluid changes, engine upkeep, and suspension repairs**.

You **prioritize driving pleasure** over daily practicality and are willing to **spend time restoring or maintaining** the car.

You **appreciate classic luxury** and are okay with **compromises in modern safety and efficiency**.

You plan to **use it sparingly** (e.g., weekends, special occasions) rather than as a daily driver.

You want a **low-maintenance, modern luxury sedan**.

You **cannot afford** the **fuel costs, repairs, or insurance**.

You **lack patience** for diagnosing and fixing classic car issues.

You **prioritize fuel efficiency, safety features, or practicality** over heritage and performance.

The W126 725i with a 94-10-87 transmission is a **fantastic car for the right owner** one who loves Mercedes engineering, enjoys the challenge of classic car ownership, and is willing to put in the work. For everyone else, it is **a high-maintenance, expensive-to-operate** vehicle that may not be worth the hassle. **Always inspect the transmission fluid, engine condition, and structural integrity before purchasing**, and consider a **restored or low-mileage example** if possible.

Details:

Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Parts must be resalable and in the original packaging. Electrical parts are not returnable. Genuine Mercedes-Benz Transmission 725-270-94-10-87: Parts: C300.

part #: slc300 prices

• $625.76-$1903.35

specifications autotransmissionsgo:

• for makes: Mercedes
• for years: 2017-2020
• model: Slc300 C300 E300 Glc300
• part type: Transmission
• genuine oem: Yes
• oem part number: 725-270-94-10-87
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• make: Mercedes-benz
• year: 2017 2018 2019 2020
• parts included: Only Part Reference 0 On The Diagram Is Included
• replaces part number: 725270061180, 725270941080
• upc: 725270941087

general autotransmissionsgo:

• condition: New
• Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission

offer autotransmissionsgo:

• availability: In Stock
• quantity: 1
• options: Ship-to-home
• started: April 25, 2026
• sold: 0

returns autotransmissionsgo:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

seller autotransmissionsgo:

• rating: 98.5%
• # reviews: 189
• city: Laguna Niguel, California

payments autotransmissionsgo:

• wallet: Paypal
• credit card: Mastercard
• other

shipping autotransmissionsgo:

• cost: $750.00
• class: Freight
• service: Flat Rate Freight
• type: Fixed

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